First Elucidation of Mechanism of Shape Memory Effect Driven by Magnetic Field

New Development toward Practical Application of High Output Actuators

2010.04.27


Hiroshima University
Tohoku University
National Institute for Materials Science
Tohoku Gakuin University

A research group elucidated the mechanism of structural phase transition shown in ferromagnetic shape memory alloys for the first time, using hard X-ray photoelectron spectroscopy (HX-PES) at the large synchrotron radiation facility SPring-8 and a computational technique, so-called, a first-principles calculation.

概要

Abstract

A research group centering on Associate Professor Akio Kimura of Graduate School of Science, Hiroshima University,, and Mr. Mao Ye, a graduate student in the same university, Professor Masafumi Shirai and Assistant Professor Yoshio Miura of the Research Institute of Electrical Communication, Tohoku University, Dr. Keisuke Kobayashi, Beamline Station Leader and Dr. Shigenori Ueda, Researcher, of the National Institute for Materials Science (NIMS), Professor Ryosuke Kainuma of the Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, and Professor Takeshi Kanomata of the Division of Engineering, Graduate School of Tohoku Gakuin University, elucidated the mechanism of structural phase transition shown in ferromagnetic shape memory alloys for the first time, using hard X-ray photoelectron spectroscopy (HX-PES) at the large synchrotron radiation facility SPring-8 and a computational technique, so-called, a first-principles calculation. Proposal for general principles of the design on next-generation actuator materials based on ferromagnetic shape memory alloys is expected to be possible as a result of these achievements.
Proposal for general principles of the design on next-generation actuator materials based on ferromagnetic shape memory alloys is expected to be possible as a result of these achievements.

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Associate Professor Akio Kimura
Graduate School of Science, Hiroshima University
1-3-1 Kagamiyama, Higashi Hiroshima-shi, Hiroshima Pref. 739-8526, Japan
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Professor Masafumi Shirai
Research Institute of Electrical Communication, Tohoku University
2-1-1 Katahira, Aoba-ku, Sendai-shi, Miyagi Pref. 980-8577, Japan
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Dr. Keisuke Kobayashi
Station Leader
NIMS Beamline Station at SPring8
National Institute for Materials Science (NIMS)
1-1-1 Koto, Sayo-cho Sayo-gun, Hyogo Pref. 679-5148, Japan
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Professor Takeshi Kanomata
Division of Engineering, Graduate School of Tohoku Gakuin University
1-13-1 Chuo, Tagajo-shi, Miyagi Pref. 980-8578, Japan
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